前段时间由于检修，偶然诊断PLC发现有个站报故障。由于下载相关组织快没有停机，经过现场排查发现有2个热电阻对地。将热电阻拆掉后报故依旧，请大侠分析分析什么最可能什么原因。现在就差153没换了，如果再停机就把153换了。
Diagnostic buffer of module CPU 414-2 DP

Order No./ Des cription Component Version
6ES7 414-2XK05-0AB0 Hardware 4
- - - Firmware V 5.3.1
Boot Loader Firmware expansion V 5.3.0

Rack: 0
Slot: 2


Serial number: SVPB2271054


Event 1 of 120: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 5
DP master system ID: 1
Log. base address of the DP slave: Input address: 8182
Log. base address of the DP master: 8191
Requested OB: Rack failure OB (OB86)
Priority class: 25
External error, Outgoing event
12:36:50.668 AM 10/29/1995
Event 120 of 120: Event ID 16# 39B1
I/O access error when updating the process image input table
P area, double-word access, access address: 580
process image partition no.: 0
not user relevant(Z1): 2942
Requested OB: Program execution error OB (OB85)
Priority class: 25
External error, Incoming event
Event 105 of 120: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 584
FC number: 4
Module address: 3140
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
Event 84 of 120: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 514
FC number: 8
Module address: 36
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event